Commit 17d899df authored Feb 22, 2016 by Chao Yu Committed by Jaegeuk Kim Feb 22, 2016

f2fs: fix the wrong stat count of calling gc



With a partition which was formated as multi segments in one section,
we stated incorrectly for count of gc operation.

e.g., for a partition with segs_per_sec = 4

cat /sys/kernel/debug/f2fs/status

GC calls: 208 (BG: 7)
  - data segments : 104 (52)
  - node segments : 104 (24)

GC called count should be (104 (data segs) + 104 (node segs)) / 4 = 52,
rather than 208. Fix it.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 4ce53776

fs/f2fs/gc.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -820,7 +820,6 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
		gc_type);

		stat_inc_seg_count(sbi, type, gc_type);
		stat_inc_call_count(sbi->stat_info);

		f2fs_put_page(sum_page, 0);
		}
		@@ -845,6 +844,9 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
		if (get_valid_blocks(sbi, start_segno++, 1) == 0)
		seg_freed++;
		}

		stat_inc_call_count(sbi->stat_info);

		return seg_freed;
		}

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